refactor: Comply with Clang's Wdouble-promotion

src/chatlog/chatwidget.h

@@ -206,7 +206,7 @@ private:
 
     // layout
     QMargins margins = QMargins(10, 10, 10, 10);
-    qreal lineSpacing = 5.0f;
+    qreal lineSpacing = 5.0;
 
     IChatLog& chatLog;
     bool colorizeNames = false;

src/chatlog/content/text.cpp

@@ -96,7 +96,7 @@ void Text::deselectText()
 
 void Text::setWidth(float w)
 {
-    width = w;
+    width = static_cast<qreal>(w);
     dirty = true;
 
     regenerate();

src/core/toxfileprogress.cpp

@@ -100,7 +100,7 @@ double ToxFileProgress::getSpeed() const
 {
     if (samples.size() > 0
         && samples[activeSample].bytesSent == filesize) {
-        return 0.0f;
+        return 0.0;
     }
 
     const auto sampleTimeInvalid = [](const Sample& sample) {
@@ -108,11 +108,11 @@ double ToxFileProgress::getSpeed() const
     };
 
     if (std::any_of(samples.cbegin(), samples.cend(), sampleTimeInvalid)) {
-        return 0.0f;
+        return 0.0;
     }
 
     if (samples[0].timestamp == samples[1].timestamp) {
-        return 0.0f;
+        return 0.0;
     }
 
     const auto& active = samples[activeSample];

src/widget/tool/flyoutoverlaywidget.h

@@ -55,6 +55,6 @@ private:
 
     QWidget* container;
     QPropertyAnimation* animation;
-    qreal percent = 1.0f;
+    qreal percent = 1.0;
     QPoint startPos;
 };

src/widget/tool/toolboxgraphicsitem.h

@@ -42,7 +42,7 @@ private:
     void startAnimation(QAbstractAnimation::Direction direction);
 
     QPropertyAnimation* opacityAnimation;
-    qreal idleOpacity = 0.0f;
-    qreal activeOpacity = 1.0f;
+    qreal idleOpacity = 0.0;
+    qreal activeOpacity = 1.0;
     int fadeTimeMs = 300;
 };